Finding the Third Proportional to 12,129.38 and 26,030.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,129.38 : 26,030.63 = 26,030.63 : x
2. Step 2: Convert to fraction form
   12,129.38/26,030.63 = 26,030.63/x
3. Step 3: Cross multiply
   12,129.38x = 26,030.63 × 26,030.63
4. Step 4: Simplify right side
   12,129.38x = 677,593,437.89
5. Step 5: Solve for x
   x = 677,593,437.89/12,129.38
6. Step 6: Final answer
   x = 55,863.84